Improved machine for cutting- shingle-bands



JOHN H. CRAWFORD AND WILLIAM H. CRAWFORD, OR Os'H'KOsH,l

WISCONSIN.-

Leners Patent No. 85,911, dated .Tammy 19,1869.

DEPROVED MACEDNE FIOR CUTTING- SHING'LE-BANDS.

i'n. schedule referred m in mese Leners Paten: 'and making par: of the nm.

To all whom it may concem Be i't known that weJ0'HN H. CRAWFORD and WIL- LIAM H. CRAWFORD, of the city of Oshkosh, county of Winnebago, and State of Wisconsin, have invented a new and'usell Machine for Cutting Shingle-Bands; and we do hereby declare that the following is a full and` exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

Similar letters of reference indicate corresponding parts in the several gures.

Figure 1 is a plane view of the machine.

, Figure 2 is a longitudinal section taken in a vertical plane.

Figure 3 is an enlarged transverse section taken in a vertical plane,lindicated by the line m k, flg. 1.

Figure 4 is an enlarged perspective view of g o, iig. 2.

Figure 5 is an enlarged perspective view off, fig. 2.

- Our invention relates to machinery for cutting and punching metallic strips from slIeet-metal.- The strips are used (in combination with woodenv binders) in packing lbunches of shingles, and other packages of a similar character.

The nature of our invention consists in combining revolving'cutters and a stationary cutter with rollers.

adapted to eect an automatic feed, and device-for punching, the rollers on one side of the sheet-metal v being provided withl annular grooves, and the rollers on the opposite side being provided with sprigs or punches, at regular intervals, that correspond with the grooves.

' The sheet-metal, as it passes between the rollers, is iirst punched, and then carried forward to the cutters with uniform feed and cnt, one with another, of a. uniform width,

To enable Others skilled in the art to understand lour invention, we will proceed to describe our machine.

In the accompanying drawings- Y A represents a rectangular frame, which is adapted for containing and supporting the 'several parts for feeding, punching, and cutting the bands..

" B is a feed-table.

b is an adjustable guide..

cc are rollers, with annular grooves.

c c' and d d are rollers, provided with punches, d', at regular intervals on their outer periphery, corresponding to the annular groovesin c c.

c is-a revolving cutter-head, with a length equal to 'the longest band desired to be cut, and is provided with two cutters, or with any other number of cutters deemed desirable.

f is a cutter, an enlarged view of which is seen in fig. 5, corresponding in length to the cutters on e.

The cutter f is secured to the front edge of the table B, and is adjusted vertically by set-screw at fn, fig. 2.

'g g are guides, suspended from a bar, o, that hold the sheet-metal down to the table, and to the stationary cutter f, an enlarged view of which is seen in iig. 4.

h is a pulley, and gives a vrotary motion to the cutter-heade.

1'. j k l fm. are gear-wheels that operate the feed and punching-rollers, and eiiect the relations of the latter' to the cutters; k, in iig. 1, being represented in section.

The guide b being. adjusted to the length of band desired, and the sheet-metal being out of such width as would be desired for the length of band, the sheet metal is placed on the table B, 'touching the guide b.

-Power being applied to the pulley h, the cutter-head,

and feed, and punchers are set in motion, the sheetmetal is caught between the rollers c and d, punched at regular intervals, then carried forward to the rotat# ing cutter e and stationary cutter j, and cut of Ia uniform width, and is thus completed, and delivered ready for use.

What we claim as our invention, and desire to secure by Letters Patent, is-

The rollers o c and d d, constructed and arranged relatively to each other, and -to the table B and cutters e and f, substantially as described, for the purposes set forth'. Y

J OHN H. CRAWFORD.

WILLIAM H. CRAWFORD. Witnesses:

W. e. RTCH, GEO. W. BURNELL. 

